This is, to my knowledge, the only work of Ernst Roehms availible in English, distributed by an Anti-Semitic publishing house called Sons of Liberty.
The speech has much historical interest because it is an apologia of Roehms vision of the SA and its role in a future National Socialist state. If you know your history you will remember that this was the main sticking point between the factions in the Nazi party and the govt. that Hitler manipulated in order to better secure himself in power in 1934. One finds many secondary source explanations of Roemhs viewpoints, but very rarely primary ones, like this pamphlet here.
I would like to add that I hate nazism of any stripe, and am making this availible to the public to clarify history, not to advance an agenda.